Final Fantasy Games without remasters

Main series:

1. FF13 subseries(already HD)

Subseries:

1. Dissidia Arcade
2. Crystal Chronicles Original game is getting a remaster in 2019, as announced in September 10th, 2018. 
3. Bravely Default

Current:

1. World of FF (Getting an enchanced port for Switch, as of September 14th, 2018).
2. FF XV

 Not remade(Main series):

1. FF6
2. FF5
3. FF8
4. FF9
5. ...

Not remastered(Crystal Chronicles):

1. Ring of Fates 
2. My Life as a King 
3. Echoes of Time 
4. My Life as a Darklord 
5. The Crystal Bearers

Edit (10.09.2018): Crystal Chronicles has been announced to get a remaster.
Eidt (14.09.2018): Bunch of SE ports were announced, including Chocobo's Mystery Dungeon: Everybody(enchanced port of Chocobo's Dungeon). However, it already got an enhanced port for DS in Japan, so it won't be listed.